CVE-2022-49205

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix double uncharge the mem of skmsg If tcpbpfsendmsg is running during a tear down operation, psock may be freed. tcpbpfsendmsg tcpbpfsendverdict skmsgreturn tcpbpfsendmsgredir unlikely!psock skmsgfree The mem of m...

CVE-2022-49205

CVE-2022-49205 fixes a double memory uncharge bug in the Linux kernel’s bpf/sockmap path (sk_msg) during teardown when psock is freed, which could cause an error path to propagate to user space. Affected component: kernel networking code (tcp_bpf_sendmsg -> tcp_bpf_send_verdict -> sk_msg_re...

CVE-2022-49204

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix more uncharged while msg has moredata In tcpbpfsendverdict, if msg has more data after tcpbpfsendmsgredir: tcpbpfsendverdict tosend = msg-sg.size //msg-sg.size = 22220 case SKREDIRECT: skmsgreturn //uncharged...

CVE-2022-49204 bpf, sockmap: Fix more uncharged while msg has more_data

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix more uncharged while msg has moredata In tcpbpfsendverdict, if msg has more data after tcpbpfsendmsgredir: tcpbpfsendverdict tosend = msg-sg.size //msg-sg.size = 22220 case SKREDIRECT: skmsgreturn //uncharged...

Ubuntu 24.04 LTS : Linux kernel vulnerabilities (USN-7304-1)

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7304-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

CVE-2022-49658: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insufficient bounds propagation from adjustscalarminmaxvals Kuee reported a corner case where the tnum becomes constant after the call to regboundoffset, but the register's bounds are not, that is, its min bounds are sti...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a possible array overflow in bpftrampolinegetprogs...

PT-2025-8137

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak issue has been identified in the Linux kernel, specifically in the bpf and sockmap components. The issue occurs when the tcp bpf sendmsg function is running while the socke...

CVE-2022-49207: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix memleak in skpsockqueuemsg If tcpbpfsendmsg is running during a tear down operation we may enqueue data on the ingress msg queue while tear down is trying to free it. sk1 redirect sk2 sk2 -------------------...

CVE-2022-49205: Double Free

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix double uncharge the mem of skmsg If tcpbpfsendmsg is running during a tear down operation, psock may be freed. tcpbpfsendmsg tcpbpfsendverdict skmsgreturn tcpbpfsendmsgredir unlikely!psock skmsgfree The mem of m...

CVE-2022-49209: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix memleak in tcpbpfsendmsg while sk msg is full If tcpbpfsendmsg is running while sk msg is full. When skmsgalloc returns -ENOMEM error, tcpbpfsendmsg goes to waitformemory. If partial memory has been alloced by...

CVE-2022-49204: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix more uncharged while msg has moredata In tcpbpfsendverdict, if msg has more data after tcpbpfsendmsgredir: tcpbpfsendverdict tosend = msg-sg.size //msg-sg.size = 22220 case SKREDIRECT: skmsgreturn //uncharged...

CVE-2022-49236: Use After Free

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF due to race between btftrygetmodule and loadmodule While working on code to populate kfunc BTF ID sets for module BTF from its initcall, I noticed that by the time the initcall is invoked, the module BTF can already ...

CVE-2022-49552: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. The combination of jit blinding and pointers to bpf subprogs causes: 36.989548 BUG: unable to handle page fault for address: 0000000100000001 36.990342 PF:...

CVE-2022-49697: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix requestsock leak in sk lookup helpers A customer reported a requestsocket leak in a Calico cloud environment. We found that a BPF program was doing a socket lookup with takes a refcnt on the socket and that it was findin...

CVE-2022-49341: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Clear prog-jitedlen along prog-jited syzbot reported an illegal copytouser attempt from bpfproggetinfobyfd 1 There was no repro yet on this bug, but I think that commit 0aef499f3172 "mm/usercopy: Detect vmalloc...

CVE-2022-49402: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ftrace: Clean up hash directfunctions on register failures We see the following GPF when registerftracedirect fails: general protection fault, probably for non-canonical address \ 0x200000000000010: 0000 1 PREEMPT SMP...

CVE-2022-49228: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a btf decltag bug when tagging a function syzbot reported a btf decltag bug with stack trace below: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1 PREEMPT SMP KASAN KASAN:...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a memory leak in the tcpbpfsendmsg function when sk msg is full...

USN-7289-3 linux-ibm vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - ACPI drivers; - GPU drivers; - HID subsystem; -...